High and low temperature resistance of phenyl silicone oil
Phenyl silicone oil is the product of partial methyl substitution of phenyl in methyl silicone oil. This structural feature gives it unique high and low temperature resistance.


Low temperature resistance: Silicone oil with low phenyl content (phenyl mole fraction of 5%~10%) is particularly suitable for occasions with high cold resistance requirements. This type of silicone oil still has fluidity at -70℃, which is difficult for other oils to achieve. This excellent low temperature resistance enables phenyl silicone oil to maintain good lubrication effect in low temperature environment.
High temperature resistance: With the increase of phenyl mole fraction, the high temperature resistance of silicone oil is significantly improved. Silicone oil with high phenyl content (phenyl mole fraction greater than 45%) will oxidize and increase viscosity when heated above 250℃. In particular, when the phenyl mole fraction reaches 50%, silicone oil with stabilizer added can even be used for hundreds of hours in a high temperature environment of 300~350℃. This high temperature resistance makes phenyl silicone oil have a wide range of application prospects in high temperature industrial equipment.
Application of phenyl silicone oil in industrial equipment lubrication
Due to its excellent high and low temperature resistance, lubricity and good electrical insulation performance, phenyl silicone oil is widely used in industrial equipment lubrication.

High and low temperature lubricants: In aviation, aerospace, electronics, electrical appliances and other industrial fields, equipment often needs to operate under extreme temperature conditions. As a high and low temperature lubricant, phenyl silicone oil can effectively reduce friction and wear and improve the operating efficiency and life of the equipment.
Damping oil: In the shock absorption and damping system of industrial equipment, phenyl silicone oil can be used as a damping oil to help the equipment run smoothly and reduce vibration and noise.
Electrical insulation material: Phenyl silicone oil has excellent electrical insulation properties, which can effectively prevent current leakage and short circuit, and ensure the normal operation of electrical equipment. Therefore, it is widely used as an insulating oil for electrical equipment.

In summary, phenyl silicone oil has an irreplaceable position in industrial equipment lubrication with its excellent high and low temperature resistance and lubrication performance. With the continuous development of industrial technology, the application field of phenyl silicone oil will be further expanded and deepened.